You probably know stores like Costco are great for discounted groceries and clothing, and you might even know they're great for discounted electronics. Weblog SmartMoney notes some other products you can grab for steep discounts, the most surprising being movie and theme park tickets.

Frequent moviegoers can save quite a bit of money on tickets, as long as you know where to look:

Shoppers planning a trip to the amusement park or movies can often save 30% by buying ahead at the warehouse club. For example, Costco charges $82.99 for a 10-pack of AMC Theatres vouchers that don't expire and can be used for any showing. A New Yorker would spend $115 at the box office for those tickets. But less frequent adventurers might find better one-time offers on daily deal sites.

You might not notice them in the store, since they almost look like gift card, but depending on the prices at your local movie theater, you could save a bundle of cash. Those aren't the only things you can save on, either—SmartMoney notes you can grab discounted insurance, or even cars, for marked down prices. Hit the link to read about other lesser-known warehouse discounts, and if you've found any others in your travels, share them with us in the comments. Photo remixed from an original by Krista.